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Calpeda Single-impeller submersible pumps in chrome-nickel stainless steel - Gxr, Gxv
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Construction
Single-impeller submersible pumps in chrome-nickel stainless steel, with vertical delivery port.
GXR: with open impeller.
GXV: with free-flow (vortex) impeller.
Motor cooled by the pumped water passing between the motor jacket and the external stainless steel wall.
Double shaft seal with oil chamber.
Applications
Clean water with suspended solids up to a diameter of 10 mm (12 mm for GXR 12..).
Draining flooded rooms or tanks.
Extraction of water from ponds, streams or pits and for rainwater collection.
For GXV: clean or slightly dirty water, containing solids up to 25 mm grain size.
Particularly suitable for liquids with a high solid content.
For GXRM and GXVM: the maximum temperature of the liquid to be used in accordance with EN 60335-2-41.
Operating conditions
Liquid temperature up to 50°C (40°C for GXR 12..).
Maximum immersion depth: 5 m.
Minimum water level with float: GXR = 70 mm, GXV = 130 mm.
Minimum water level manual operation: GXR = 15 mm, GXV = 30 mm.
Continuous duty.
Motor
2-pole induction motor, 50 Hz (n = 2900 rpm).
GXR, GXV: three-phase 230 V ± 10%.
GXRM, GXVM: single-phase 230 V ± 10%, with float switch and thermal protector.
F: incorporated capacitor.
Insulation class F.
Protection IP X8 (for continuous immersion).
Double impregnation humidity-proof winding.
Constructed in accordance with EN 60034-1.
Special features on request
Other voltages.
Frequency 60 Hz (see 60 Hz data sheet).
Other mechanical seal.
Cable length 10 m (20 m for GXR 12..).
Vertical magnetic float switch.
Motor suitable for operation with frequency converter.
Three-phase pumps with built-in switch and float.
Designation
Example: GXVLM 25-10
GX = Series
V = Vortex impeller with open impeller.
L = AISI 316L version (no code = AISI 304 version)
M = Single-phase (no indication = three-phase)
25 = Solids passage (diameter)
10 = Total head in indoors
Materials
Components GX materials... AISI 304 Materials GXVL 25-10 AISI 316
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Pump casing Chrome-nickel steel 1.4301 EN 10088 (AISI 304) Stainless Steel 1.4404 EN 10088 (AISI 316L)
Filter Chrome-nickel steel 1.4301 EN 10088 (AISI 304) Stainless Steel 1.4404 EN 10088 (AISI 316L)
Impeller Chrome-nickel steel 1.4301 EN 10088 (AISI 304) Stainless Steel 1.4404 EN 10088 (AISI 316L)
Motor jacket Chrome-nickel steel 1.4301 EN 10088 (AISI 304) Stainless Steel 1.4404 EN 10088 (AISI 316L)
Pump jacket Chrome-nickel steel 1.4301 EN 10088 (AISI 304) Stainless Steel 1.4404 EN 10088 (AISI 316L)
Handle 1.4305 EN 10088 steel (AISI 303) Polypropylene
Shaft 1.4301 EN 10088 steel (AISI 304 for GXR 12) Stainless Steel 1.4404 EN 10088 (AISI 316L)
Mechanical seal Alumina-Carbon-NBR Alumina-Carbon-NBR
Seal lubrication oil Oil for food/pharmaceutical machinery Oil for food/pharmaceutical machinery
Power supply cable Float switch
Pump type Cable material Section Length Plug CEE-UNEL 47165 Cable material Section
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GXRM 9 H05RN-F 3G0.75 mm² 5 m YES H07RN-F 3G1 mm²
GXRM 25-6 H05RN-F 3G0.75 mm² 5 m YES H07RN-F 3G1 mm²
GXVM 25-6 H05RN-F 3G0.75 mm² 5 m YES H07RN-F 3G1 mm²
GXRM 25-10,12,14,16 H07RN-F 3G1 mm² 5 m YES H07RN-F 3G1 mm²
GXVM 25-10,12,14,16 H07RN-F 3G1 mm² 5 m YES H07RN-F 3G1 mm²
GXR 9 H07RN-F 3G1 mm² 5 m NO NO -
GXR 11,13 H07RN-F 3G1 mm² 5 m NO NO -
GXR 12 H07RN-F 4G1 mm² 10 m NO NO -
GXR 9
Specific References
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Construction
Single-impeller submersible pumps in chrome-nickel stainless steel, with vertical delivery port.
GXR: with open impeller.
GXV: with free-flow (vortex) impeller.
Motor cooled by the pumped water passing between the motor jacket and the external stainless steel wall.
Double shaft seal with oil chamber.